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Feed intake variation in crossbred lambs applied to livestock production

Citation

Holman, BWB and Malau-Aduli, AEO, Feed intake variation in crossbred lambs applied to livestock production, Proceedings of the 10th World Congress of Genetics Applied to Livestock Production, 17-22 August 2014, Vancouver, Canada, pp. 1-3. (2014) [Refereed Conference Paper]


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Copyright Statement

Copyright 2014 the Authors

Official URL: https://asas.org/wcgalp-proceedings

Abstract

Spirulina supplementation, and lamb sire breed and sex effects were investigated using 24 lambs in a 3 x 4 x 2 balanced experimental design, representing: 3 sire breeds (Dorset, Merino, White Suffolk), 4 Spirulina levels (CONTROL, LOW, MEDIUM, HIGH), and 2 sexes (ewes, wethers). Lambs were supplemented Spirulina daily and had ad libitum access to Lucerne hay. Daily consumption of Lucerne hay was monitored, with data transformed into feed models: residual feed intake, residual liveweight gain, standardised daily feed intake (SDFI), feed conversion ratio, daily feed intake (DFI). Spirulina level and sex were found to have no independent effects on lamb feed intake (P>0.05). Merino sired lambs feed intake was lower than their crossbred counterparts using SDFI and DFI values (P<0.023). And, Merino ewe lambs consumed more Lucerne hay than wethers (P<0.05). These findings could prove useful when balancing feed resources to match Spirulina supplementation and lamb breeding management goals.

Item Details

Item Type:Refereed Conference Paper
Keywords:feed intake, genetic variation, crossbred lambs, spirulina, Arthrospira platensis, protein-supplementation, crossbred, sheep
Research Division:Agricultural and Veterinary Sciences
Research Group:Animal Production
Research Field:Animal Breeding
Objective Division:Animal Production and Animal Primary Products
Objective Group:Livestock Raising
Objective Field:Sheep - Meat
Author:Malau-Aduli, AEO (Associate Professor Aduli Malau-Aduli)
ID Code:92636
Year Published:2014
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2014-06-25
Last Modified:2015-03-30
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